Kyra Han is the only survivor of Mar Sara Colony massacre, all because the Terran and the Protoss military force greatly demise from previous conflicts making many of their colony have to rely on a more private company for protection.

Set 2 years after the final event of Legacy of the Void. The three race now living peacefully. But it all change when the Purifiers reprogram the Spear of Adun and attack the protoss capital, killing all the Twilight Council members.